NWS WEATHER
Atlanta75°FClearBaltimore82°FClearBoston79°FClearCharlotte73°FClearChicago55°FMostly CloudyDallas66°FCloudyDenver39°FClearDetroit52°FCloudyHouston70°FLight RainLos Angeles63°FClearMiami82°FClearMinneapolis46°FClearNew York78°FClearOrlando79°FClearPhiladelphia81°FClearPhoenix86°FClearPortland54°FMostly CloudyRiverside57°FSmokeSacramento54°FClearSan Antonio66°FMostly SunnySan Francisco54°FMostly SunnySeattle54°FCloudySt. Louis55°FCloudyTampa78°FClearWashington79°FClearAtlanta75°FClearBaltimore82°FClearBoston79°FClearCharlotte73°FClearChicago55°FMostly CloudyDallas66°FCloudyDenver39°FClearDetroit52°FCloudyHouston70°FLight RainLos Angeles63°FClearMiami82°FClearMinneapolis46°FClearNew York78°FClearOrlando79°FClearPhiladelphia81°FClearPhoenix86°FClearPortland54°FMostly CloudyRiverside57°FSmokeSacramento54°FClearSan Antonio66°FMostly SunnySan Francisco54°FMostly SunnySeattle54°FCloudySt. Louis55°FCloudyTampa78°FClearWashington79°FClear
Phoenix, AZ skyline — local weather forecast and conditions
Phoenix, AZ Photo: Nils Huenerfuerst
Weather Phoenix, AZ

Phoenix Weather Wednesday: Sunny 93°F Before the Weekend Heat Surge

Best Window Wednesday: 93°F, Sunny
Rain Risk Low
What To Wear / Bring Sun protection, water, and breathable layers
Useful Links Local forecast, radar, and relevant planning links
Disclosure: This article may contain affiliate links. We may earn a small commission at no extra cost to you. As an Amazon Associate, Weather Window earns from qualifying purchases.

7-Day Forecast

Wed 93°Sunny
Thu 95°Sunny
Fri 96°Sunny
Sat 97°Sunny
Sun 100°Sunny
Mem 101°Sunny
Tue 99°Sunny

Phoenix, AZ is kicking off Wednesday with wall-to-wall sunshine and a high near 93°F — one of the more comfortable days left before temperatures push toward triple digits, so make the most of it.

Today’s Setup

The National Weather Service is forecasting full sunshine with a high near 93°F and south winds a barely noticeable 0 to 5 mph. Overnight, skies stay clear with a low around 68°F. According to NWS forecasters in Phoenix, the slight mid-level troughing that kept us cooler than normal recently is moderating — today’s high is right on daily normal for late May. That’s actually the good news. The not-so-great news is that warming continues through the weekend.

Best Window To Be Outside

Get out early. Camelback Mountain and South Mountain trails are ideal before 9 AM — light wind and sub-90°F temps make the climb manageable and the views worth it. Golfers, this is a genuine green-light morning from tee to finish. Fishing conditions look excellent too; calm water and comfortable air temps create a solid window at area lakes. One heads-up: spring pollen is still circulating across the Valley, so if you’ve been sneezing, bring some Claritin non-drowsy allergy before you hit the trail.

D-backs Game and Weekend Events

The Arizona Diamondbacks host the San Francisco Giants tonight at Chase Field — warm evening conditions, so dress light. Rep the team with an Arizona Diamondbacks jersey and Arizona Diamondbacks fitted cap. Need seats? Get tickets on SeatGeek or Find tickets on StubHub. The D-backs then turn around to host the Colorado Rockies on May 22 and May 23 — a great long weekend stretch of home baseball.

On Thursday, May 21, the Phoenix Mercury take on the Los Angeles Sparks at Mortgage Matchup Center — a smart indoor option as afternoon heat climbs.

Tonight (May 20), Behemoth brings The Godless IV 2026 to The Van Buren. Find tickets on StubHub if you’re into heavy metal and late nights.

Looking further out, YUNGBLUD brings the IDOLS - THE WORLD TOUR to Arizona Financial Theatre on May 25. Grab a YUNGBLUD t-shirt and Get tickets on SeatGeek before they’re gone.

What To Wear Or Bring

Light, breathable clothing and sunscreen are the baseline. A portable misting fan is worth tossing in your bag for any afternoon outdoor stretch. Anglers and golfers should look at a fishing sun shirt UPF 50 for full-day protection — we’ve also spotted a deal on UPF 50+ fishing shirts for $6.50 that’s hard to beat right now. Grab your gear and browse outdoor gear deals before the heat makes shopping feel like work.

Fire Up the Grill Tonight

Calm winds and a pleasant evening low of 68°F make tonight ideal for backyard grilling. Fire up burgers, steaks, or grilled chicken with corn on the cob. Make sure your setup is game-ready with an instant-read meat thermometer for perfect doneness every time, and a grill brush and scraper set to keep the grates clean and ready. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.

Next Few Days

Thursday brings more sun and a high near 95°F. The National Weather Service says the warming trend continues through the weekend as weak ridging builds into the Southwest — lower desert highs approaching near 100°F by the end of the week. Mornings will still be comfortable, but afternoon heat demands respect, especially for anyone with outdoor plans at South Mountain or around the Valley. No rain is in the forecast through at least next week.

Stay ahead of it all with the full Phoenix weather forecast.

Upcoming Home Games

Plan around the forecast — grab tickets, gear up, and see kickoff conditions.

Arizona Diamondbacks vs San Francisco Giants
Wed, May 20 · Chase Field
Arizona Diamondbacks vs Colorado Rockies
Fri, May 22 · Chase Field
Arizona Diamondbacks vs Colorado Rockies
Sat, May 23 · Chase Field

Live Radar — Phoenix Area

Full interactive radar →
Live weather radar for Phoenix, AZ

Radar data from the National Weather Service